GetFLV software (version 19.6838.688) is a tool that allows users to download, convert, and play online videos from various websites. It supports multiple video formats, including FLV, MP4, AVI, and WMV, and can extract audio from videos. The software also includes a built-in web browser, a video and audio recorder, and a video repair tool. Additionally, it supports batch downloads and can download videos from multiple sources simultaneously.